Park Grounds: Open 24 hours; admission is free.
Ueda City Museum and Ueda Castle Yagura Gate: Open from 8:30 AM to 5:00 PM (last entry at 4:30 PM). They are closed on Wednesdays, the day after holidays, and around New Year's Day. Admission fees are 300 yen for adults, 200 yen for high school students, and 100 yen for elementary school students.